Main reducer and planet gear concentrate middle section system of transmission power

The utility model discloses a main reducer and planet gear concentrate middle section system of transmission power, including main reducer, planet gear, semi -axis and double strand chain shaft, main reducer is including moving spiral bevel gear and differential mechanism, it is connected as an organic wholely with differential mechanism to move spiral bevel gear, third bearing by controlling both sides supports on the owner subtracts the casing, differential mechanism's both sides all are equipped with planet gear and semi -axis, planet gear installs in planet speed reduction casing, the ring gear is supported on planet speed reduction casing by the second bearing with the ring gear supporting, the splined connection of ring gear supporting and double strand chain shaft, the double strand chain shaft is supported on planet speed reduction casing by first bearing. The utility model discloses a main reducer about with two planet gear concentrate on mid portion, the bulk strength increase because inside does no